Bone plate, bone plate system, and method of using the same

Patent metadata

Field	Value
Publication number	US-12408960-B2
Application number	US-202418435146-A
Country	US
Kind code	B2
Filing date	Feb 7, 2024
Priority date	Oct 15, 2020
Publication date	Sep 9, 2025
Grant date	Sep 9, 2025

Abstract

A bone plate comprises a plate body and at least one tab. The plate body defines an inner body surface configured to face an underlying bone, an outer body surface opposite the inner body surface, and an outer side surface that extends between the inner body surface and the outer body surface. The outer side surface defines an outer perimeter of the plate body. The at least one tab includes a head and an arm that extends from the plate body to the head. The tab defines a tab aperture that extends through the head and is configured to receive a bone anchor. The bone anchor can be coupled with a screw hole in the nail. The arm is configured to deflect with respect to the plate body so as to move the head between a pre-fixation position and a fixation position spaced from the pre-fixation position.

First claim

What is claimed:

1. A system comprising:
a bone plate including:
a plate body that defines a bone-facing body surface configured to face a bone and an outer body surface opposite the bone-facing body surface, wherein the bone plate defines a plurality of threaded bone anchor apertures that extend through the plate body from the outer body surface to the bone-facing body surface and are each configured to receive a respective bone anchor, the plate body is devoid of flexible arms, and the plate body defines an outermost plate body perimeter that extends about the plate body at a location between the bone-facing body surface and the outer body surface;
first and second tabs each including a respective flexible arm that extends from the plate body along a respective length direction to a respective head that is supported by the respective flexible arm, and a respective tab aperture that extends through the respective head and is configured to receive a respective bone anchor, wherein each of the first and second tabs terminates at the respective head,
wherein each of the flexible arms defines a respective inner bone-facing surface and a respective outer surface opposite the respective inner bone-facing surface along a thickness that extends along a thickness direction,
wherein each of the flexible arms defines respective opposed sides that are opposite each other along a width that extends along a width direction, and the width is greater than the thickness along respective entireties of the flexible arms, and the sides are all straight and linear,
wherein the opposed sides of the flexible arm of the first tab are spaced from each other along the outermost body perimeter along the width direction, and the opposed sides of the flexible arm of the second tab are spaced from each other along the outermost body perimeter along the width direction,
wherein both of the respective opposed sides of the first flexible arm extend directionally away from both of the respective opposed sides of the second flexible arm from the plate body to the respective head; and

an intramedullary nail configured to be inserted into medullary canal of the bone, wherein the intramedullary nail is configured to receive the bone anchors so as to fix the intramedullary nail to the plate body.

2. The system of claim 1 , wherein each of the threaded bone anchor apertures defines respective pairs with each other of the threaded bone anchor apertures, and for each respective pair of threaded bone anchor apertures, a straight line that extends through respective centers of the bone anchor apertures of the pair divides the plate body into a first plate body side and a second plate body side, and the tabs extend from only one of the first and second plate body sides, such that no tabs extend out from the other of the first and second plate body sides.

3. The system of claim 1 , wherein:
the plate body defines a first direction, a second direction perpendicular to the first direction, and a third direction opposite the second direction and perpendicular to the first direction,
the bone plate defines a bone plate aperture,
wherein the bone plate aperture is disposed between first and second ones of the threaded bone anchor apertures with respect to the first direction, such that a straight line that passes through the bone plate aperture and is oriented along the first direction also passes through the first and second ones of the threaded bone anchor apertures,
wherein the plurality of threaded bone anchor apertures further includes third and fourth ones of the plurality of threaded bone anchor apertures that are offset with respect to the bone plate aperture in the second direction, such that a second straight line that is oriented along the first direction and extends through the third one of the plurality of fixation holes also passes through the fourth one of the plurality of fixation holes; and
each of the respective heads is offset from the plate body in the third direction.

4. The system of claim 1 , wherein the threaded bone anchor apertures comprise variable angle threading.

5. The system of claim 1 , wherein the bone plate further comprises a bone plate aperture that extends through the plate body that is configured to receive a corresponding fastener of a bone plate holder.

6. The system of claim 5 , wherein the bone plate aperture is threaded.

7. The system of claim 6 , further comprising a second bone plate aperture that is configured to receive a respective feature of the bone plate holder.

8. The system of claim 7 , wherein the second bone plate aperture is unthreaded.

9. The system of claim 1 , further comprising the bone plate holder.

10. The system of claim 1 , wherein the plate body has a plate body thickness that extends from the bone-facing body surface to the outer body surface, and an entirety of the plate body thickness is greater than the thickness of each of the flexible arms.

11. A system comprising:
a bone plate including:
a plate body that defines a bone-facing body surface configured to face a bone and an outer body surface opposite the bone-facing body surface, wherein the bone plate defines a plurality of threaded bone anchor apertures that extend through the plate body from the outer body surface to the bone-facing body surface and are each configured to receive a respective bone anchor, and the plate body is devoid of flexible arms; and
first and second tabs each including a respective flexible arm that extends from the plate body, a respective head supported by the respective flexible arm, and a respective tab aperture that extends through the respective head and is configured to receive a respective bone anchor,
wherein each of the flexible arms defines a respective inner bone-facing surface and a respective outer surface opposite the respective inner bone-facing surface along a respective thickness that extends along a thickness direction, and
wherein each of the flexible arms defines respective opposed sides that are opposite each other along a width that extends along a width direction, and the width is greater than the thickness along respective entireties of the flexible arms, and
wherein both of the respective opposed sides of each of the first and second flexible arms extend directionally away, along respective entireties of their lengths from the plate body to the respective head, from the other of the first and second flexible arms; and

an intramedullary nail configured to be inserted into medullary canal of the bone, wherein the intramedullary nail is configured to receive the bone anchors so as to fix the intramedullary nail to the plate body.

12. The system of claim 11 , wherein each of the threaded bone anchor apertures defines respective pairs with each other of the threaded bone anchor apertures, and for each respective pair of threaded bone anchor apertures, a straight line that extends through respective centers of the bone anchor apertures of the pair divides the plate body into a first plate body side and a second plate body side, and the tabs extend from only one of the first and second plate body sides, such that no tabs extend out from the other of the first and second plate body sides.

13. The system of claim 11 , wherein:
the plate body defines a first direction, a second direction perpendicular to the first direction, and a third direction opposite the second direction and perpendicular to the first direction,
the bone plate defines a bone plate aperture,
wherein the bone plate aperture is disposed between first and second ones of the threaded bone anchor apertures with respect to the first direction, such that a straig

Assignees

• Depuy Synthes Products Inc

Inventors

• Gabelberger Josef
• Cowens David
• Mcmanus Joshua
• Keyer Thomas
• Santis Catherine
• Khatchadourian Robert
• Van Citters Peter
• Bogle David W
• Sibole Alexandra

Classifications

• A61B17/8061

  specially adapted for particular bones (A61B17/70 and A61B17/74 take precedence) · CPC title

• A61B17/8014

  the extension or compression force being caused by interaction of the plate hole and the screws · CPC title

• A61B17/8052

  immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded · CPC title

• A61B17/8863

  Apparatus for shaping or cutting osteosynthesis equipment by medical personnel · CPC title

• A61B17/808 Primary

  Instruments for holding or positioning bone plates, or for adjusting screw-to-plate locking mechanisms · CPC title